Titanium Complex Grease Compatibility with Lithium Soap

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Solution Overview

Problem

Existing mixed base greases often face incompatibility issues between different soap components, leading to antagonistic effects and limited commercial success, particularly when using transition metal-based soaps like titanium, which have not been extensively explored for lubricating greases.

Innovation Solution

A novel process combining a titanium complex grease with lithium, aluminum, or clay-based greases, along with optional additives, to create a synergistic lubricating grease composition that enhances shelf life, high-temperature performance, and anti-wear properties, by forming a mix of carboxylic acids, titanium alkoxide, and oils, followed by shearing to achieve compatibility and desired NLGI characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If mixed base greases are prepared using conventional soaps, then water resistance and adhesive properties are improved, but incompatibility and antagonistic effects between different soap components occur

Engineering Contradiction:
Improvewater resistanceVSAvoidcompatibility
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The invention combines titanium complex grease with conventional soap-based grease (lithium, aluminum complex, sulphonate complex, or clay-based) to create a composite lubricating grease composition. This composite approach allows the grease to benefit from both the water resistance and adhesive properties of conventional soaps and the high-temperature performance and extreme pressure properties of titanium complex grease, while maintaining compatibility between components.

Inventive Principle:
Principle #40Composite materials

2Temperature

If titanium complex grease is used alone, then high-temperature performance and extreme pressure properties are improved, but compatibility with other grease components is limited

Engineering Contradiction:
Improvehigh-temperature performanceVSAvoidcompatibility
Core Design Contradiction:
TemperatureVSAdaptability or versatility

Solution Approach 1:

The invention merges titanium complex grease with conventional soap-based grease components in specific proportions to create a synergistic composition. This combination allows the grease to exhibit both the high-temperature performance characteristics of titanium complex grease and the compatibility, water resistance, and adhesive properties of conventional soaps, thereby expanding the adaptability and versatility of the lubricating grease.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If mixed soap concentrations are increased to improve performance, then lubrication properties are enhanced, but soap compatibility and stability decrease

Engineering Contradiction:
Improvelubrication propertiesVSAvoidsoap compatibility
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The invention optimizes the concentration parameters of different soap components and titanium complex grease to achieve the desired balance between lubrication properties and compatibility. By carefully controlling the proportions of each component within specific ranges, the grease formulation maintains stability while delivering enhanced lubrication performance, extreme pressure resistance, and water resistance.

Inventive Principle:
Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The resulting grease exhibits improved drop point, extreme pressure, and anti-wear properties, with a shelf life exceeding one year and reduced soap concentration requirements, demonstrating high performance suitable for commercial applications.

Implementation Method 1

a titanium compound with an oil to form a grease product

Methodology Applied
Scientific EffectChemical Bonding: Chemical Bonding

Implementation Method 2

The mixture is then sheared. Greases of NLGI 1-3 characteristics can be obtained.

Methodology Applied
Scientific EffectShear Stress: Shear Stress

Data Source

PatentUS7767634B2Lubricating grease composition
Publication Date: 2010.08.03 INDIAN OIL CORP LTD

AI summary

Lubricating grease compositions have a titanium complex grease component along with a mineral/synthetic oil-based component and a conventional soap or grease. The conventional soaps and greases may be lithium complex, calcium sulfonate, or aluminum complex-based, among others, with and without additives. The compositions are high performance geases, exhibiting improved drop point, extreme pressure, antiwear, oil separation, and shelf life properties.